/* This is based on Linux Wireless Extensions header file from WIRELESS_EXT 18.
 * I have just removed kernel related headers and added some typedefs etc. to
 * make this easier to include into user space programs.
 * Jouni Malinen, 2005-03-12.
 *
 * $Id: wireless_copy.h 1426 2006-02-01 20:07:11Z mrenzmann $
 */

/*
 * This file define a set of standard wireless extensions
 *
 * Version :    19  18.3.05
 *
 * Authors :    Jean Tourrilhes - HPL - <jt@hpl.hp.com>
 * Copyright (c) 1997-2005 Jean Tourrilhes, All Rights Reserved.
 */

#ifndef _LINUX_WIRELESS_H
#define _LINUX_WIRELESS_H

/************************** DOCUMENTATION **************************/
/*
 * Initial APIs (1996 -> onward) :
 * -----------------------------
 * Basically, the wireless extensions are for now a set of standard ioctl
 * call + /proc/net/wireless
 *
 * The entry /proc/net/wireless give statistics and information on the
 * driver.
 * This is better than having each driver having its entry because
 * its centralised and we may remove the driver module safely.
 *
 * Ioctl are used to configure the driver and issue commands.  This is
 * better than command line options of insmod because we may want to
 * change dynamically (while the driver is running) some parameters.
 *
 * The ioctl mechanimsm are copied from standard devices ioctl.
 * We have the list of command plus a structure descibing the
 * data exchanged...
 * Note that to add these ioctl, I was obliged to modify :
 *  # net/core/dev.c (two place + add include)
 *  # net/ipv4/af_inet.c (one place + add include)
 *
 * /proc/net/wireless is a copy of /proc/net/dev.
 * We have a structure for data passed from the driver to /proc/net/wireless
 * Too add this, I've modified :
 *  # net/core/dev.c (two other places)
 *  # include/linux/netdevice.h (one place)
 *  # include/linux/proc_fs.h (one place)
 *
 * New driver API (2002 -> onward) :
 * -------------------------------
 * This file is only concerned with the user space API and common definitions.
 * The new driver API is defined and documented in :
 *  # include/net/iw_handler.h
 *
 * Note as well that /proc/net/wireless implementation has now moved in :
 *  # net/core/wireless.c
 *
 * Wireless Events (2002 -> onward) :
 * --------------------------------
 * Events are defined at the end of this file, and implemented in :
 *  # net/core/wireless.c
 *
 * Other comments :
 * --------------
 * Do not add here things that are redundant with other mechanisms
 * (drivers init, ifconfig, /proc/net/dev, ...) and with are not
 * wireless specific.
 *
 * These wireless extensions are not magic : each driver has to provide
 * support for them...
 *
 * IMPORTANT NOTE : As everything in the kernel, this is very much a
 * work in progress. Contact me if you have ideas of improvements...
 */

/***************************** INCLUDES *****************************/

/* jkm - replaced linux headers with C library headers, added typedefs */
#if 0
/* To minimise problems in user space, I might remove those headers
 * at some point. Jean II */
#include <linux/types.h>	/* for "caddr_t" et al      */
#include <linux/socket.h>	/* for "struct sockaddr" et al  */
#include <linux/if.h>		/* for IFNAMSIZ and co... */
#else
#include <sys/types.h>
#include <net/if.h>
typedef __uint32_t __u32;
typedef __int32_t __s32;
typedef __uint16_t __u16;
typedef __int16_t __s16;
typedef __uint8_t __u8;
#ifndef __user
#define __user
#endif				/* __user */
#endif

/***************************** VERSION *****************************/
/*
 * This constant is used to know the availability of the wireless
 * extensions and to know which version of wireless extensions it is
 * (there is some stuff that will be added in the future...)
 * I just plan to increment with each new version.
 */
#define WIRELESS_EXT    19

/*
 * Changes :
 *
 * V2 to V3
 * --------
 *  Alan Cox start some incompatibles changes. I've integrated a bit more.
 *  - Encryption renamed to Encode to avoid US regulation problems
 *  - Frequency changed from float to struct to avoid problems on old 386
 *
 * V3 to V4
 * --------
 *  - Add sensitivity
 *
 * V4 to V5
 * --------
 *  - Missing encoding definitions in range
 *  - Access points stuff
 *
 * V5 to V6
 * --------
 *  - 802.11 support (ESSID ioctls)
 *
 * V6 to V7
 * --------
 *  - define IW_ESSID_MAX_SIZE and IW_MAX_AP
 *
 * V7 to V8
 * --------
 *  - Changed my e-mail address
 *  - More 802.11 support (nickname, rate, rts, frag)
 *  - List index in frequencies
 *
 * V8 to V9
 * --------
 *  - Support for 'mode of operation' (ad-hoc, managed...)
 *  - Support for unicast and multicast power saving
 *  - Change encoding to support larger tokens (>64 bits)
 *  - Updated iw_params (disable, flags) and use it for NWID
 *  - Extracted iw_point from iwreq for clarity
 *
 * V9 to V10
 * ---------
 *  - Add PM capability to range structure
 *  - Add PM modifier : MAX/MIN/RELATIVE
 *  - Add encoding option : IW_ENCODE_NOKEY
 *  - Add TxPower ioctls (work like TxRate)
 *
 * V10 to V11
 * ----------
 *  - Add WE version in range (help backward/forward compatibility)
 *  - Add retry ioctls (work like PM)
 *
 * V11 to V12
 * ----------
 *  - Add SIOCSIWSTATS to get /proc/net/wireless programatically
 *  - Add DEV PRIVATE IOCTL to avoid collisions in SIOCDEVPRIVATE space
 *  - Add new statistics (frag, retry, beacon)
 *  - Add average quality (for user space calibration)
 *
 * V12 to V13
 * ----------
 *  - Document creation of new driver API.
 *  - Extract union iwreq_data from struct iwreq (for new driver API).
 *  - Rename SIOCSIWNAME as SIOCSIWCOMMIT
 *
 * V13 to V14
 * ----------
 *  - Wireless Events support : define struct iw_event
 *  - Define additional specific event numbers
 *  - Add "addr" and "param" fields in union iwreq_data
 *  - AP scanning stuff (SIOCSIWSCAN and friends)
 *
 * V14 to V15
 * ----------
 *  - Add IW_PRIV_TYPE_ADDR for struct sockaddr private arg
 *  - Make struct iw_freq signed (both m & e), add explicit padding
 *  - Add IWEVCUSTOM for driver specific event/scanning token
 *  - Add IW_MAX_GET_SPY for driver returning a lot of addresses
 *  - Add IW_TXPOW_RANGE for range of Tx Powers
 *  - Add IWEVREGISTERED & IWEVEXPIRED events for Access Points
 *  - Add IW_MODE_MONITOR for passive monitor
 *
 * V15 to V16
 * ----------
 *  - Increase the number of bitrates in iw_range to 32 (for 802.11g)
 *  - Increase the number of frequencies in iw_range to 32 (for 802.11b+a)
 *  - Reshuffle struct iw_range for increases, add filler
 *  - Increase IW_MAX_AP to 64 for driver returning a lot of addresses
 *  - Remove IW_MAX_GET_SPY because conflict with enhanced spy support
 *  - Add SIOCSIWTHRSPY/SIOCGIWTHRSPY and "struct iw_thrspy"
 *  - Add IW_ENCODE_TEMP and iw_range->encoding_login_index
 *
 * V16 to V17
 * ----------
 *  - Add flags to frequency -> auto/fixed
 *  - Document (struct iw_quality *)->updated, add new flags (INVALID)
 *  - Wireless Event capability in struct iw_range
 *  - Add support for relative TxPower (yick !)
 *
 * V17 to V18 (From Jouni Malinen <jkmaline@cc.hut.fi>)
 * ----------
 *  - Add support for WPA/WPA2
 *  - Add extended encoding configuration (SIOCSIWENCODEEXT and
 *    SIOCGIWENCODEEXT)
 *  - Add SIOCSIWGENIE/SIOCGIWGENIE
 *  - Add SIOCSIWMLME
 *  - Add SIOCSIWPMKSA
 *  - Add struct iw_range bit field for supported encoding capabilities
 *  - Add optional scan request parameters for SIOCSIWSCAN
 *  - Add SIOCSIWAUTH/SIOCGIWAUTH for setting authentication and WPA
 *    related parameters (extensible up to 4096 parameter values)
 *  - Add wireless events: IWEVGENIE, IWEVMICHAELMICFAILURE,
 *    IWEVASSOCREQIE, IWEVASSOCRESPIE, IWEVPMKIDCAND
 *
 * V18 to V19
 * ----------
 *  - Remove (struct iw_point *)->pointer from events and streams
 *  - Remove header includes to help user space
 *  - Increase IW_ENCODING_TOKEN_MAX from 32 to 64
 *  - Add IW_QUAL_ALL_UPDATED and IW_QUAL_ALL_INVALID macros
 *  - Add explicit flag to tell stats are in dBm : IW_QUAL_DBM
 *  - Add IW_IOCTL_IDX() and IW_EVENT_IDX() macros
 */

/**************************** CONSTANTS ****************************/

/* -------------------------- IOCTL LIST -------------------------- */

/* Wireless Identification */
#define SIOCSIWCOMMIT   0x8B00	/* Commit pending changes to driver */
#define SIOCGIWNAME 0x8B01	/* get name == wireless protocol */
/* SIOCGIWNAME is used to verify the presence of Wireless Extensions.
 * Common values : "IEEE 802.11-DS", "IEEE 802.11-FH", "IEEE 802.11b"...
 * Don't put the name of your driver there, it's useless. */

/* Basic operations */
#define SIOCSIWNWID 0x8B02	/* set network id (pre-802.11) */
#define SIOCGIWNWID 0x8B03	/* get network id (the cell) */
#define SIOCSIWFREQ 0x8B04	/* set channel/frequency (Hz) */
#define SIOCGIWFREQ 0x8B05	/* get channel/frequency (Hz) */
#define SIOCSIWMODE 0x8B06	/* set operation mode */
#define SIOCGIWMODE 0x8B07	/* get operation mode */
#define SIOCSIWSENS 0x8B08	/* set sensitivity (dBm) */
#define SIOCGIWSENS 0x8B09	/* get sensitivity (dBm) */

/* Informative stuff */
#define SIOCSIWRANGE    0x8B0A	/* Unused */
#define SIOCGIWRANGE    0x8B0B	/* Get range of parameters */
#define SIOCSIWPRIV 0x8B0C	/* Unused */
#define SIOCGIWPRIV 0x8B0D	/* get private ioctl interface info */
#define SIOCSIWSTATS    0x8B0E	/* Unused */
#define SIOCGIWSTATS    0x8B0F	/* Get /proc/net/wireless stats */
/* SIOCGIWSTATS is strictly used between user space and the kernel, and
 * is never passed to the driver (i.e. the driver will never see it). */

/* Spy support (statistics per MAC address - used for Mobile IP support) */
#define SIOCSIWSPY  0x8B10	/* set spy addresses */
#define SIOCGIWSPY  0x8B11	/* get spy info (quality of link) */
#define SIOCSIWTHRSPY   0x8B12	/* set spy threshold (spy event) */
#define SIOCGIWTHRSPY   0x8B13	/* get spy threshold */

/* Access Point manipulation */
#define SIOCSIWAP   0x8B14	/* set access point MAC addresses */
#define SIOCGIWAP   0x8B15	/* get access point MAC addresses */
#define SIOCGIWAPLIST   0x8B17	/* Deprecated in favor of scanning */
#define SIOCSIWSCAN 0x8B18	/* trigger scanning (list cells) */
#define SIOCGIWSCAN 0x8B19	/* get scanning results */

/* 802.11 specific support */
#define SIOCSIWESSID    0x8B1A	/* set ESSID (network name) */
#define SIOCGIWESSID    0x8B1B	/* get ESSID */
#define SIOCSIWNICKN    0x8B1C	/* set node name/nickname */
#define SIOCGIWNICKN    0x8B1D	/* get node name/nickname */
/* As the ESSID and NICKN are strings up to 32 bytes long, it doesn't fit
 * within the 'iwreq' structure, so we need to use the 'data' member to
 * point to a string in user space, like it is done for RANGE... */

/* Other parameters useful in 802.11 and some other devices */
#define SIOCSIWRATE 0x8B20	/* set default bit rate (bps) */
#define SIOCGIWRATE 0x8B21	/* get default bit rate (bps) */
#define SIOCSIWRTS  0x8B22	/* set RTS/CTS threshold (bytes) */
#define SIOCGIWRTS  0x8B23	/* get RTS/CTS threshold (bytes) */
#define SIOCSIWFRAG 0x8B24	/* set fragmentation thr (bytes) */
#define SIOCGIWFRAG 0x8B25	/* get fragmentation thr (bytes) */
#define SIOCSIWTXPOW    0x8B26	/* set transmit power (dBm) */
#define SIOCGIWTXPOW    0x8B27	/* get transmit power (dBm) */
#define SIOCSIWRETRY    0x8B28	/* set retry limits and lifetime */
#define SIOCGIWRETRY    0x8B29	/* get retry limits and lifetime */

/* Encoding stuff (scrambling, hardware security, WEP...) */
#define SIOCSIWENCODE   0x8B2A	/* set encoding token & mode */
#define SIOCGIWENCODE   0x8B2B	/* get encoding token & mode */
/* Power saving stuff (power management, unicast and multicast) */
#define SIOCSIWPOWER    0x8B2C	/* set Power Management settings */
#define SIOCGIWPOWER    0x8B2D	/* get Power Management settings */

/* WPA : Generic IEEE 802.11 informatiom element (e.g., for WPA/RSN/WMM).
 * This ioctl uses struct iw_point and data buffer that includes IE id and len
 * fields. More than one IE may be included in the request. Setting the generic
 * IE to empty buffer (len=0) removes the generic IE from the driver. Drivers
 * are allowed to generate their own WPA/RSN IEs, but in these cases, drivers
 * are required to report the used IE as a wireless event, e.g., when
 * associating with an AP. */
#define SIOCSIWGENIE    0x8B30	/* set generic IE */
#define SIOCGIWGENIE    0x8B31	/* get generic IE */

/* WPA : IEEE 802.11 MLME requests */
#define SIOCSIWMLME 0x8B16	/* request MLME operation; uses
				 * struct iw_mlme */
/* WPA : Authentication mode parameters */
#define SIOCSIWAUTH 0x8B32	/* set authentication mode params */
#define SIOCGIWAUTH 0x8B33	/* get authentication mode params */

/* WPA : Extended version of encoding configuration */
#define SIOCSIWENCODEEXT 0x8B34	/* set encoding token & mode */
#define SIOCGIWENCODEEXT 0x8B35	/* get encoding token & mode */

/* WPA2 : PMKSA cache management */
#define SIOCSIWPMKSA    0x8B36	/* PMKSA cache operation */

/* -------------------- DEV PRIVATE IOCTL LIST -------------------- */

/* These 32 ioctl are wireless device private, for 16 commands.
 * Each driver is free to use them for whatever purpose it chooses,
 * however the driver *must* export the description of those ioctls
 * with SIOCGIWPRIV and *must* use arguments as defined below.
 * If you don't follow those rules, DaveM is going to hate you (reason :
 * it make mixed 32/64bit operation impossible).
 */
#define SIOCIWFIRSTPRIV 0x8BE0
#define SIOCIWLASTPRIV  0x8BFF
/* Previously, we were using SIOCDEVPRIVATE, but we now have our
 * separate range because of collisions with other tools such as
 * 'mii-tool'.
 * We now have 32 commands, so a bit more space ;-).
 * Also, all 'odd' commands are only usable by root and don't return the
 * content of ifr/iwr to user (but you are not obliged to use the set/get
 * convention, just use every other two command). More details in iwpriv.c.
 * And I repeat : you are not forced to use them with iwpriv, but you
 * must be compliant with it.
 */

/* ------------------------- IOCTL STUFF ------------------------- */

/* The first and the last (range) */
#define SIOCIWFIRST 0x8B00
#define SIOCIWLAST  SIOCIWLASTPRIV	/* 0x8BFF */
#define IW_IOCTL_IDX(cmd)   ((cmd) - SIOCIWFIRST)

/* Even : get (world access), odd : set (root access) */
#define IW_IS_SET(cmd)  (!((cmd) & 0x1))
#define IW_IS_GET(cmd)  ((cmd) & 0x1)

/* ----------------------- WIRELESS EVENTS ----------------------- */
/* Those are *NOT* ioctls, do not issue request on them !!! */
/* Most events use the same identifier as ioctl requests */

#define IWEVTXDROP  0x8C00	/* Packet dropped to excessive retry */
#define IWEVQUAL    0x8C01	/* Quality part of statistics (scan) */
#define IWEVCUSTOM  0x8C02	/* Driver specific ascii string */
#define IWEVREGISTERED  0x8C03	/* Discovered a new node (AP mode) */
#define IWEVEXPIRED 0x8C04	/* Expired a node (AP mode) */
#define IWEVGENIE   0x8C05	/* Generic IE (WPA, RSN, WMM, ..)
				 * (scan results); This includes id and
				 * length fields. One IWEVGENIE may
				 * contain more than one IE. Scan
				 * results may contain one or more
				 * IWEVGENIE events. */
#define IWEVMICHAELMICFAILURE 0x8C06	/* Michael MIC failure
					 * (struct iw_michaelmicfailure)
					 */
#define IWEVASSOCREQIE  0x8C07	/* IEs used in (Re)Association Request.
				 * The data includes id and length
				 * fields and may contain more than one
				 * IE. This event is required in
				 * Managed mode if the driver
				 * generates its own WPA/RSN IE. This
				 * should be sent just before
				 * IWEVREGISTERED event for the
				 * association. */
#define IWEVASSOCRESPIE 0x8C08	/* IEs used in (Re)Association
				 * Response. The data includes id and
				 * length fields and may contain more
				 * than one IE. This may be sent
				 * between IWEVASSOCREQIE and
				 * IWEVREGISTERED events for the
				 * association. */
#define IWEVPMKIDCAND   0x8C09	/* PMKID candidate for RSN
				 * pre-authentication
				 * (struct iw_pmkid_cand) */

#define IWEVFIRST   0x8C00
#define IW_EVENT_IDX(cmd)   ((cmd) - IWEVFIRST)

			/* ------------------------- PRIVATE INFO ------------------------- */
			/*
			 * The following is used with SIOCGIWPRIV. It allow a driver to define
			 * the interface (name, type of data) for its private ioctl.
			 * Privates ioctl are SIOCIWFIRSTPRIV -> SIOCIWLASTPRIV
			 */

#define IW_PRIV_TYPE_MASK   0x7000	/* Type of arguments */
#define IW_PRIV_TYPE_NONE   0x0000
#define IW_PRIV_TYPE_BYTE   0x1000	/* Char as number */
#define IW_PRIV_TYPE_CHAR   0x2000	/* Char as character */
#define IW_PRIV_TYPE_INT    0x4000	/* 32 bits int */
#define IW_PRIV_TYPE_FLOAT  0x5000	/* struct iw_freq */
#define IW_PRIV_TYPE_ADDR   0x6000	/* struct sockaddr */

#define IW_PRIV_SIZE_FIXED  0x0800	/* Variable or fixed number of args */

#define IW_PRIV_SIZE_MASK   0x07FF	/* Max number of those args */

			/*
			 * Note : if the number of args is fixed and the size < 16 octets,
			 * instead of passing a pointer we will put args in the iwreq struct...
			 */

			/* ----------------------- OTHER CONSTANTS ----------------------- */

			/* Maximum frequencies in the range struct */
#define IW_MAX_FREQUENCIES  32
			/* Note : if you have something like 80 frequencies,
			 * don't increase this constant and don't fill the frequency list.
			 * The user will be able to set by channel anyway... */

			/* Maximum bit rates in the range struct */
#define IW_MAX_BITRATES     32

			/* Maximum tx powers in the range struct */
#define IW_MAX_TXPOWER      8
			/* Note : if you more than 8 TXPowers, just set the max and min or
			 * a few of them in the struct iw_range. */

			/* Maximum of address that you may set with SPY */
#define IW_MAX_SPY      8

			/* Maximum of address that you may get in the
			   list of access points in range */
#define IW_MAX_AP       64

			/* Maximum size of the ESSID and NICKN strings */
#define IW_ESSID_MAX_SIZE   32

			/* Modes of operation */
#define IW_MODE_AUTO    0	/* Let the driver decides */
#define IW_MODE_ADHOC   1	/* Single cell network */
#define IW_MODE_INFRA   2	/* Multi cell network, roaming, ... */
#define IW_MODE_MASTER  3	/* Synchronisation master or Access Point */
#define IW_MODE_REPEAT  4	/* Wireless Repeater (forwarder) */
#define IW_MODE_SECOND  5	/* Secondary master/repeater (backup) */
#define IW_MODE_MONITOR 6	/* Passive monitor (listen only) */

			/* Statistics flags (bitmask in updated) */
#define IW_QUAL_QUAL_UPDATED    0x01	/* Value was updated since last read */
#define IW_QUAL_LEVEL_UPDATED   0x02
#define IW_QUAL_NOISE_UPDATED   0x04
#define IW_QUAL_ALL_UPDATED 0x07
#define IW_QUAL_DBM     0x08	/* Level + Noise are dBm */
#define IW_QUAL_QUAL_INVALID    0x10	/* Driver doesn't provide value */
#define IW_QUAL_LEVEL_INVALID   0x20
#define IW_QUAL_NOISE_INVALID   0x40
#define IW_QUAL_ALL_INVALID 0x70

			/* Frequency flags */
#define IW_FREQ_AUTO        0x00	/* Let the driver decides */
#define IW_FREQ_FIXED       0x01	/* Force a specific value */

			/* Maximum number of size of encoding token available
			 * they are listed in the range structure */
#define IW_MAX_ENCODING_SIZES   8

			/* Maximum size of the encoding token in bytes */
#define IW_ENCODING_TOKEN_MAX   64	/* 512 bits (for now) */

			/* Flags for encoding (along with the token) */
#define IW_ENCODE_INDEX     0x00FF	/* Token index (if needed) */
#define IW_ENCODE_FLAGS     0xFF00	/* Flags defined below */
#define IW_ENCODE_MODE      0xF000	/* Modes defined below */
#define IW_ENCODE_DISABLED  0x8000	/* Encoding disabled */
#define IW_ENCODE_ENABLED   0x0000	/* Encoding enabled */
#define IW_ENCODE_RESTRICTED    0x4000	/* Refuse non-encoded packets */
#define IW_ENCODE_OPEN      0x2000	/* Accept non-encoded packets */
#define IW_ENCODE_NOKEY     0x0800	/* Key is write only, so not present */
#define IW_ENCODE_TEMP      0x0400	/* Temporary key */

			/* Power management flags available (along with the value, if any) */
#define IW_POWER_ON     0x0000	/* No details... */
#define IW_POWER_TYPE       0xF000	/* Type of parameter */
#define IW_POWER_PERIOD     0x1000	/* Value is a period/duration of  */
#define IW_POWER_TIMEOUT    0x2000	/* Value is a timeout (to go asleep) */
#define IW_POWER_MODE       0x0F00	/* Power Management mode */
#define IW_POWER_UNICAST_R  0x0100	/* Receive only unicast messages */
#define IW_POWER_MULTICAST_R    0x0200	/* Receive only multicast messages */
#define IW_POWER_ALL_R      0x0300	/* Receive all messages though PM */
#define IW_POWER_FORCE_S    0x0400	/* Force PM procedure for sending unicast */
#define IW_POWER_REPEATER   0x0800	/* Repeat broadcast messages in PM period */
#define IW_POWER_MODIFIER   0x000F	/* Modify a parameter */
#define IW_POWER_MIN        0x0001	/* Value is a minimum  */
#define IW_POWER_MAX        0x0002	/* Value is a maximum */
#define IW_POWER_RELATIVE   0x0004	/* Value is not in seconds/ms/us */

			/* Transmit Power flags available */
#define IW_TXPOW_TYPE       0x00FF	/* Type of value */
#define IW_TXPOW_DBM        0x0000	/* Value is in dBm */
#define IW_TXPOW_MWATT      0x0001	/* Value is in mW */
#define IW_TXPOW_RELATIVE   0x0002	/* Value is in arbitrary units */
#define IW_TXPOW_RANGE      0x1000	/* Range of value between min/max */

			/* Retry limits and lifetime flags available */
#define IW_RETRY_ON     0x0000	/* No details... */
#define IW_RETRY_TYPE       0xF000	/* Type of parameter */
#define IW_RETRY_LIMIT      0x1000	/* Maximum number of retries */
#define IW_RETRY_LIFETIME   0x2000	/* Maximum duration of retries in us */
#define IW_RETRY_MODIFIER   0x000F	/* Modify a parameter */
#define IW_RETRY_MIN        0x0001	/* Value is a minimum  */
#define IW_RETRY_MAX        0x0002	/* Value is a maximum */
#define IW_RETRY_RELATIVE   0x0004	/* Value is not in seconds/ms/us */

			/* Scanning request flags */
#define IW_SCAN_DEFAULT     0x0000	/* Default scan of the driver */
#define IW_SCAN_ALL_ESSID   0x0001	/* Scan all ESSIDs */
#define IW_SCAN_THIS_ESSID  0x0002	/* Scan only this ESSID */
#define IW_SCAN_ALL_FREQ    0x0004	/* Scan all Frequencies */
#define IW_SCAN_THIS_FREQ   0x0008	/* Scan only this Frequency */
#define IW_SCAN_ALL_MODE    0x0010	/* Scan all Modes */
#define IW_SCAN_THIS_MODE   0x0020	/* Scan only this Mode */
#define IW_SCAN_ALL_RATE    0x0040	/* Scan all Bit-Rates */
#define IW_SCAN_THIS_RATE   0x0080	/* Scan only this Bit-Rate */
			/* struct iw_scan_req scan_type */
#define IW_SCAN_TYPE_ACTIVE 0
#define IW_SCAN_TYPE_PASSIVE 1
			/* Maximum size of returned data */
#define IW_SCAN_MAX_DATA    4096	/* In bytes */

			/* Max number of char in custom event - use multiple of them if needed */
#define IW_CUSTOM_MAX       256	/* In bytes */

			/* Generic information element */
#define IW_GENERIC_IE_MAX   1024

			/* MLME requests (SIOCSIWMLME / struct iw_mlme) */
#define IW_MLME_DEAUTH      0
#define IW_MLME_DISASSOC    1

			/* SIOCSIWAUTH/SIOCGIWAUTH struct iw_param flags */
#define IW_AUTH_INDEX       0x0FFF
#define IW_AUTH_FLAGS       0xF000
			/* SIOCSIWAUTH/SIOCGIWAUTH parameters (0 .. 4095)
			 * (IW_AUTH_INDEX mask in struct iw_param flags; this is the index of the
			 * parameter that is being set/get to; value will be read/written to
			 * struct iw_param value field) */
#define IW_AUTH_WPA_VERSION     0
#define IW_AUTH_CIPHER_PAIRWISE     1
#define IW_AUTH_CIPHER_GROUP        2
#define IW_AUTH_KEY_MGMT        3
#define IW_AUTH_TKIP_COUNTERMEASURES    4
#define IW_AUTH_DROP_UNENCRYPTED    5
#define IW_AUTH_80211_AUTH_ALG      6
#define IW_AUTH_WPA_ENABLED     7
#define IW_AUTH_RX_UNENCRYPTED_EAPOL    8
#define IW_AUTH_ROAMING_CONTROL     9
#define IW_AUTH_PRIVACY_INVOKED     10

			/* IW_AUTH_WPA_VERSION values (bit field) */
#define IW_AUTH_WPA_VERSION_DISABLED    0x00000001
#define IW_AUTH_WPA_VERSION_WPA     0x00000002
#define IW_AUTH_WPA_VERSION_WPA2    0x00000004

			/* IW_AUTH_PAIRWISE_CIPHER and IW_AUTH_GROUP_CIPHER values (bit field) */
#define IW_AUTH_CIPHER_NONE 0x00000001
#define IW_AUTH_CIPHER_WEP40    0x00000002
#define IW_AUTH_CIPHER_TKIP 0x00000004
#define IW_AUTH_CIPHER_CCMP 0x00000008
#define IW_AUTH_CIPHER_WEP104   0x00000010

			/* IW_AUTH_KEY_MGMT values (bit field) */
#define IW_AUTH_KEY_MGMT_802_1X 1
#define IW_AUTH_KEY_MGMT_PSK    2

			/* IW_AUTH_80211_AUTH_ALG values (bit field) */
#define IW_AUTH_ALG_OPEN_SYSTEM 0x00000001
#define IW_AUTH_ALG_SHARED_KEY  0x00000002
#define IW_AUTH_ALG_LEAP    0x00000004

			/* IW_AUTH_ROAMING_CONTROL values */
#define IW_AUTH_ROAMING_ENABLE  0	/* driver/firmware based roaming */
#define IW_AUTH_ROAMING_DISABLE 1	/* user space program used for roaming
					 * control */

			/* SIOCSIWENCODEEXT definitions */
#define IW_ENCODE_SEQ_MAX_SIZE  8
			/* struct iw_encode_ext ->alg */
#define IW_ENCODE_ALG_NONE  0
#define IW_ENCODE_ALG_WEP   1
#define IW_ENCODE_ALG_TKIP  2
#define IW_ENCODE_ALG_CCMP  3
			/* struct iw_encode_ext ->ext_flags */
#define IW_ENCODE_EXT_TX_SEQ_VALID  0x00000001
#define IW_ENCODE_EXT_RX_SEQ_VALID  0x00000002
#define IW_ENCODE_EXT_GROUP_KEY     0x00000004
#define IW_ENCODE_EXT_SET_TX_KEY    0x00000008

			/* IWEVMICHAELMICFAILURE : struct iw_michaelmicfailure ->flags */
#define IW_MICFAILURE_KEY_ID    0x00000003	/* Key ID 0..3 */
#define IW_MICFAILURE_GROUP 0x00000004
#define IW_MICFAILURE_PAIRWISE  0x00000008
#define IW_MICFAILURE_STAKEY    0x00000010
#define IW_MICFAILURE_COUNT 0x00000060	/* 1 or 2 (0 = count not supported)
					 */

			/* Bit field values for enc_capa in struct iw_range */
#define IW_ENC_CAPA_WPA     0x00000001
#define IW_ENC_CAPA_WPA2    0x00000002
#define IW_ENC_CAPA_CIPHER_TKIP 0x00000004
#define IW_ENC_CAPA_CIPHER_CCMP 0x00000008

			/* Event capability macros - in (struct iw_range *)->event_capa
			 * Because we have more than 32 possible events, we use an array of
			 * 32 bit bitmasks. Note : 32 bits = 0x20 = 2^5. */
#define IW_EVENT_CAPA_BASE(cmd)     ((cmd >= SIOCIWFIRSTPRIV) ? \
                     (cmd - SIOCIWFIRSTPRIV + 0x60) : \
                     (cmd - SIOCSIWCOMMIT))
#define IW_EVENT_CAPA_INDEX(cmd)    (IW_EVENT_CAPA_BASE(cmd) >> 5)
#define IW_EVENT_CAPA_MASK(cmd)     (1 << (IW_EVENT_CAPA_BASE(cmd) & 0x1F))
			/* Event capability constants - event autogenerated by the kernel
			 * This list is valid for most 802.11 devices, customise as needed... */
#define IW_EVENT_CAPA_K_0   (IW_EVENT_CAPA_MASK(0x8B04) | \
                 IW_EVENT_CAPA_MASK(0x8B06) | \
                 IW_EVENT_CAPA_MASK(0x8B1A))
#define IW_EVENT_CAPA_K_1   (IW_EVENT_CAPA_MASK(0x8B2A))
			/* "Easy" macro to set events in iw_range (less efficient) */
#define IW_EVENT_CAPA_SET(event_capa, cmd) (event_capa[IW_EVENT_CAPA_INDEX(cmd)] |= IW_EVENT_CAPA_MASK(cmd))
#define IW_EVENT_CAPA_SET_KERNEL(event_capa) {event_capa[0] |= IW_EVENT_CAPA_K_0; event_capa[1] |= IW_EVENT_CAPA_K_1; }

			/****************************** TYPES ******************************/

			/* --------------------------- SUBTYPES --------------------------- */
			/*
			 *  Generic format for most parameters that fit in an int
			 */
struct iw_param {
	__s32 value;		/* The value of the parameter itself */
	__u8 fixed;		/* Hardware should not use auto select */
	__u8 disabled;		/* Disable the feature */
	__u16 flags;		/* Various specifc flags (if any) */
};

/*
 *  For all data larger than 16 octets, we need to use a
 *  pointer to memory allocated in user space.
 */
struct iw_point {
	void __user *pointer;	/* Pointer to the data  (in user space) */
	__u16 length;		/* number of fields or size in bytes */
	__u16 flags;		/* Optional params */
};

/*
 *  A frequency
 *  For numbers lower than 10^9, we encode the number in 'm' and
 *  set 'e' to 0
 *  For number greater than 10^9, we divide it by the lowest power
 *  of 10 to get 'm' lower than 10^9, with 'm'= f / (10^'e')...
 *  The power of 10 is in 'e', the result of the division is in 'm'.
 */
struct iw_freq {
	__s32 m;		/* Mantissa */
	__s16 e;		/* Exponent */
	__u8 i;			/* List index (when in range struct) */
	__u8 flags;		/* Flags (fixed/auto) */
};

/*
 *  Quality of the link
 */
struct iw_quality {
	__u8 qual;		/* link quality (%retries, SNR,
				   %missed beacons or better...) */
	__u8 level;		/* signal level (dBm) */
	__u8 noise;		/* noise level (dBm) */
	__u8 updated;		/* Flags to know if updated */
};

/*
 *  Packet discarded in the wireless adapter due to
 *  "wireless" specific problems...
 *  Note : the list of counter and statistics in net_device_stats
 *  is already pretty exhaustive, and you should use that first.
 *  This is only additional stats...
 */
struct iw_discarded {
	__u32 nwid;		/* Rx : Wrong nwid/essid */
	__u32 code;		/* Rx : Unable to code/decode (WEP) */
	__u32 fragment;		/* Rx : Can't perform MAC reassembly */
	__u32 retries;		/* Tx : Max MAC retries num reached */
	__u32 misc;		/* Others cases */
};

/*
 *  Packet/Time period missed in the wireless adapter due to
 *  "wireless" specific problems...
 */
struct iw_missed {
	__u32 beacon;		/* Missed beacons/superframe */
};

/*
 *  Quality range (for spy threshold)
 */
struct iw_thrspy {
	struct sockaddr addr;	/* Source address (hw/mac) */
	struct iw_quality qual;	/* Quality of the link */
	struct iw_quality low;	/* Low threshold */
	struct iw_quality high;	/* High threshold */
};

/*
 *  Optional data for scan request
 *
 *  Note: these optional parameters are controlling parameters for the
 *  scanning behavior, these do not apply to getting scan results
 *  (SIOCGIWSCAN). Drivers are expected to keep a local BSS table and
 *  provide a merged results with all BSSes even if the previous scan
 *  request limited scanning to a subset, e.g., by specifying an SSID.
 *  Especially, scan results are required to include an entry for the
 *  current BSS if the driver is in Managed mode and associated with an AP.
 */
struct iw_scan_req {
	__u8 scan_type;		/* IW_SCAN_TYPE_{ACTIVE,PASSIVE} */
	__u8 essid_len;
	__u8 num_channels;	/* num entries in channel_list;
				 * 0 = scan all allowed channels */
	__u8 flags;		/* reserved as padding; use zero, this may
				 * be used in the future for adding flags
				 * to request different scan behavior */
	struct sockaddr bssid;	/* ff:ff:ff:ff:ff:ff for broadcast BSSID or
				 * individual address of a specific BSS */

	/*
	 * Use this ESSID if IW_SCAN_THIS_ESSID flag is used instead of using
	 * the current ESSID. This allows scan requests for specific ESSID
	 * without having to change the current ESSID and potentially breaking
	 * the current association.
	 */
	__u8 essid[IW_ESSID_MAX_SIZE];

	/*
	 * Optional parameters for changing the default scanning behavior.
	 * These are based on the MLME-SCAN.request from IEEE Std 802.11.
	 * TU is 1.024 ms. If these are set to 0, driver is expected to use
	 * reasonable default values. min_channel_time defines the time that
	 * will be used to wait for the first reply on each channel. If no
	 * replies are received, next channel will be scanned after this. If
	 * replies are received, total time waited on the channel is defined by
	 * max_channel_time.
	 */
	__u32 min_channel_time;	/* in TU */
	__u32 max_channel_time;	/* in TU */

	struct iw_freq channel_list[IW_MAX_FREQUENCIES];
};

/* ------------------------- WPA SUPPORT ------------------------- */

/*
 *  Extended data structure for get/set encoding (this is used with
 *  SIOCSIWENCODEEXT/SIOCGIWENCODEEXT. struct iw_point and IW_ENCODE_*
 *  flags are used in the same way as with SIOCSIWENCODE/SIOCGIWENCODE and
 *  only the data contents changes (key data -> this structure, including
 *  key data).
 *
 *  If the new key is the first group key, it will be set as the default
 *  TX key. Otherwise, default TX key index is only changed if
 *  IW_ENCODE_EXT_SET_TX_KEY flag is set.
 *
 *  Key will be changed with SIOCSIWENCODEEXT in all cases except for
 *  special "change TX key index" operation which is indicated by setting
 *  key_len = 0 and ext_flags |= IW_ENCODE_EXT_SET_TX_KEY.
 *
 *  tx_seq/rx_seq are only used when respective
 *  IW_ENCODE_EXT_{TX,RX}_SEQ_VALID flag is set in ext_flags. Normal
 *  TKIP/CCMP operation is to set RX seq with SIOCSIWENCODEEXT and start
 *  TX seq from zero whenever key is changed. SIOCGIWENCODEEXT is normally
 *  used only by an Authenticator (AP or an IBSS station) to get the
 *  current TX sequence number. Using TX_SEQ_VALID for SIOCSIWENCODEEXT and
 *  RX_SEQ_VALID for SIOCGIWENCODEEXT are optional, but can be useful for
 *  debugging/testing.
 */
struct iw_encode_ext {
	__u32 ext_flags;	/* IW_ENCODE_EXT_* */
	__u8 tx_seq[IW_ENCODE_SEQ_MAX_SIZE];	/* LSB first */
	__u8 rx_seq[IW_ENCODE_SEQ_MAX_SIZE];	/* LSB first */
	struct sockaddr addr;	/* ff:ff:ff:ff:ff:ff for broadcast/multicast
				 * (group) keys or unicast address for
				 * individual keys */
	__u16 alg;		/* IW_ENCODE_ALG_* */
	__u16 key_len;
	__u8 key[0];
};

/* SIOCSIWMLME data */
struct iw_mlme {
	__u16 cmd;		/* IW_MLME_* */
	__u16 reason_code;
	struct sockaddr addr;
};

/* SIOCSIWPMKSA data */
#define IW_PMKSA_ADD        1
#define IW_PMKSA_REMOVE     2
#define IW_PMKSA_FLUSH      3

#define IW_PMKID_LEN    16

struct iw_pmksa {
	__u32 cmd;		/* IW_PMKSA_* */
	struct sockaddr bssid;
	__u8 pmkid[IW_PMKID_LEN];
};

/* IWEVMICHAELMICFAILURE data */
struct iw_michaelmicfailure {
	__u32 flags;
	struct sockaddr src_addr;
	__u8 tsc[IW_ENCODE_SEQ_MAX_SIZE];	/* LSB first */
};

/* IWEVPMKIDCAND data */
#define IW_PMKID_CAND_PREAUTH   0x00000001	/* RNS pre-authentication enabled */
struct iw_pmkid_cand {
	__u32 flags;		/* IW_PMKID_CAND_* */
	__u32 index;		/* the smaller the index, the higher the
				 * priority */
	struct sockaddr bssid;
};

/* ------------------------ WIRELESS STATS ------------------------ */
/*
 * Wireless statistics (used for /proc/net/wireless)
 */
struct iw_statistics {
	__u16 status;		/* Status
				 * - device dependent for now */

	struct iw_quality qual;	/* Quality of the link
				 * (instant/mean/max) */
	struct iw_discarded discard;	/* Packet discarded counts */
	struct iw_missed miss;	/* Packet missed counts */
};

/* ------------------------ IOCTL REQUEST ------------------------ */
/*
 * This structure defines the payload of an ioctl, and is used
 * below.
 *
 * Note that this structure should fit on the memory footprint
 * of iwreq (which is the same as ifreq), which mean a max size of
 * 16 octets = 128 bits. Warning, pointers might be 64 bits wide...
 * You should check this when increasing the structures defined
 * above in this file...
 */
union iwreq_data {
	/* Config - generic */
	char name[IFNAMSIZ];
	/* Name : used to verify the presence of  wireless extensions.
	 * Name of the protocol/provider... */

	struct iw_point essid;	/* Extended network name */
	struct iw_param nwid;	/* network id (or domain - the cell) */
	struct iw_freq freq;	/* frequency or channel :
				 * 0-1000 = channel
				 * > 1000 = frequency in Hz */

	struct iw_param sens;	/* signal level threshold */
	struct iw_param bitrate;	/* default bit rate */
	struct iw_param txpower;	/* default transmit power */
	struct iw_param rts;	/* RTS threshold threshold */
	struct iw_param frag;	/* Fragmentation threshold */
	__u32 mode;		/* Operation mode */
	struct iw_param retry;	/* Retry limits & lifetime */

	struct iw_point encoding;	/* Encoding stuff : tokens */
	struct iw_param power;	/* PM duration/timeout */
	struct iw_quality qual;	/* Quality part of statistics */

	struct sockaddr ap_addr;	/* Access point address */
	struct sockaddr addr;	/* Destination address (hw/mac) */

	struct iw_param param;	/* Other small parameters */
	struct iw_point data;	/* Other large parameters */
};

/*
 * The structure to exchange data for ioctl.
 * This structure is the same as 'struct ifreq', but (re)defined for
 * convenience...
 * Do I need to remind you about structure size (32 octets) ?
 */
struct iwreq {
	union {
		char ifrn_name[IFNAMSIZ];	/* if name, e.g. "eth0" */
	} ifr_ifrn;

	/* Data part (defined just above) */
	union iwreq_data u;
};

/* -------------------------- IOCTL DATA -------------------------- */
/*
 *  For those ioctl which want to exchange mode data that what could
 *  fit in the above structure...
 */

/*
 *  Range of parameters
 */

struct iw_range {
	/* Informative stuff (to choose between different interface) */
	__u32 throughput;	/* To give an idea... */
	/* In theory this value should be the maximum benchmarked
	 * TCP/IP throughput, because with most of these devices the
	 * bit rate is meaningless (overhead an co) to estimate how
	 * fast the connection will go and pick the fastest one.
	 * I suggest people to play with Netperf or any benchmark...
	 */

	/* NWID (or domain id) */
	__u32 min_nwid;		/* Minimal NWID we are able to set */
	__u32 max_nwid;		/* Maximal NWID we are able to set */

	/* Old Frequency (backward compat - moved lower ) */
	__u16 old_num_channels;
	__u8 old_num_frequency;

	/* Wireless event capability bitmasks */
	__u32 event_capa[6];

	/* signal level threshold range */
	__s32 sensitivity;

	/* Quality of link & SNR stuff */
	/* Quality range (link, level, noise)
	 * If the quality is absolute, it will be in the range [0 ; max_qual],
	 * if the quality is dBm, it will be in the range [max_qual ; 0].
	 * Don't forget that we use 8 bit arithmetics... */
	struct iw_quality max_qual;	/* Quality of the link */
	/* This should contain the average/typical values of the quality
	 * indicator. This should be the threshold between a "good" and
	 * a "bad" link (example : monitor going from green to orange).
	 * Currently, user space apps like quality monitors don't have any
	 * way to calibrate the measurement. With this, they can split
	 * the range between 0 and max_qual in different quality level
	 * (using a geometric subdivision centered on the average).
	 * I expect that people doing the user space apps will feedback
	 * us on which value we need to put in each driver... */
	struct iw_quality avg_qual;	/* Quality of the link */

	/* Rates */
	__u8 num_bitrates;	/* Number of entries in the list */
	__s32 bitrate[IW_MAX_BITRATES];	/* list, in bps */

	/* RTS threshold */
	__s32 min_rts;		/* Minimal RTS threshold */
	__s32 max_rts;		/* Maximal RTS threshold */

	/* Frag threshold */
	__s32 min_frag;		/* Minimal frag threshold */
	__s32 max_frag;		/* Maximal frag threshold */

	/* Power Management duration & timeout */
	__s32 min_pmp;		/* Minimal PM period */
	__s32 max_pmp;		/* Maximal PM period */
	__s32 min_pmt;		/* Minimal PM timeout */
	__s32 max_pmt;		/* Maximal PM timeout */
	__u16 pmp_flags;	/* How to decode max/min PM period */
	__u16 pmt_flags;	/* How to decode max/min PM timeout */
	__u16 pm_capa;		/* What PM options are supported */

	/* Encoder stuff */
	__u16 encoding_size[IW_MAX_ENCODING_SIZES];	/* Different token sizes */
	__u8 num_encoding_sizes;	/* Number of entry in the list */
	__u8 max_encoding_tokens;	/* Max number of tokens */
	/* For drivers that need a "login/passwd" form */
	__u8 encoding_login_index;	/* token index for login token */

	/* Transmit power */
	__u16 txpower_capa;	/* What options are supported */
	__u8 num_txpower;	/* Number of entries in the list */
	__s32 txpower[IW_MAX_TXPOWER];	/* list, in bps */

	/* Wireless Extension version info */
	__u8 we_version_compiled;	/* Must be WIRELESS_EXT */
	__u8 we_version_source;	/* Last update of source */

	/* Retry limits and lifetime */
	__u16 retry_capa;	/* What retry options are supported */
	__u16 retry_flags;	/* How to decode max/min retry limit */
	__u16 r_time_flags;	/* How to decode max/min retry life */
	__s32 min_retry;	/* Minimal number of retries */
	__s32 max_retry;	/* Maximal number of retries */
	__s32 min_r_time;	/* Minimal retry lifetime */
	__s32 max_r_time;	/* Maximal retry lifetime */

	/* Frequency */
	__u16 num_channels;	/* Number of channels [0; num - 1] */
	__u8 num_frequency;	/* Number of entry in the list */
	struct iw_freq freq[IW_MAX_FREQUENCIES];	/* list */
	/* Note : this frequency list doesn't need to fit channel numbers,
	 * because each entry contain its channel index */

	__u32 enc_capa;		/* IW_ENC_CAPA_* bit field */
};

/*
 * Private ioctl interface information
 */

struct iw_priv_args {
	__u32 cmd;		/* Number of the ioctl to issue */
	__u16 set_args;		/* Type and number of args */
	__u16 get_args;		/* Type and number of args */
	char name[IFNAMSIZ];	/* Name of the extension */
};

/* ----------------------- WIRELESS EVENTS ----------------------- */
/*
 * Wireless events are carried through the rtnetlink socket to user
 * space. They are encapsulated in the IFLA_WIRELESS field of
 * a RTM_NEWLINK message.
 */

/*
 * A Wireless Event. Contains basically the same data as the ioctl...
 */
struct iw_event {
	__u16 len;		/* Real length of this stuff */
	__u16 cmd;		/* Wireless IOCTL */
	union iwreq_data u;	/* IOCTL fixed payload */
};

/* Size of the Event prefix (including padding and alignement junk) */
#define IW_EV_LCP_LEN   (sizeof(struct iw_event) - sizeof(union iwreq_data))
/* Size of the various events */
#define IW_EV_CHAR_LEN  (IW_EV_LCP_LEN + IFNAMSIZ)
#define IW_EV_UINT_LEN  (IW_EV_LCP_LEN + sizeof(__u32))
#define IW_EV_FREQ_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_freq))
#define IW_EV_PARAM_LEN (IW_EV_LCP_LEN + sizeof(struct iw_param))
#define IW_EV_ADDR_LEN  (IW_EV_LCP_LEN + sizeof(struct sockaddr))
#define IW_EV_QUAL_LEN  (IW_EV_LCP_LEN + sizeof(struct iw_quality))

/* iw_point events are special. First, the payload (extra data) come at
 * the end of the event, so they are bigger than IW_EV_POINT_LEN. Second,
 * we omit the pointer, so start at an offset. */
#define IW_EV_POINT_OFF (((char *) &(((struct iw_point *) NULL)->length)) - \
              (char *) NULL)
#define IW_EV_POINT_LEN (IW_EV_LCP_LEN + sizeof(struct iw_point) - \
             IW_EV_POINT_OFF)

#endif				/* _LINUX_WIRELESS_H */
